Raspberry Pi to Arduino Serial USB Communication

Here's how to communicate between a Raspberry Pi and an Arduino using serial USB communication.

Link to the source code shown in this video:

See also:

Making Servo Robot Eyes for YoLuke Webcam - Izzy

Making BB-8 Droid (v2) - Part 1

Make USB Power Cable

[TheToastybadger]

Welcome back! Hope you've been keeping safe during the pandemic

[zackaryfowler]

Missed your videos. You were one of the first channels I ever subscribed to. More micro controller videos please!

[domtom]

Finally a new upload! :D Hope you're doing well, great video as always! :) Audio levels seem to be a bit too high, sometimes clipping.

[SadamFlu]

Good to see you're doing what you enjoy!

[candicevetter]

Glad you're still alive. Do you want to come out for a walk sometime this spring/summer? Been ages.

[Mark-zusc]

Thank you! Works very well talking from a Raspberry Pi 3 B+ USB port to a Raspberry Pi Pico USB port. Excellent!

[Grizzly_Lab]

First of all: welcome back 😍 I'm so happy you return from time to time 💪💖
And, moreover, thank you very much for this very useful tip: I also started experimenting both with arduino and raspberry, and I'm quite interested in operating both using arduino to manage sensors and raspberry to get some results, mix, sum, elaborate, nuke, rinse, iron 🤔😅 and spit out on a nice web interface 😉
Greetings, and hope to see another interesting video soon

[landonferguson]

Hope to see many more videos from you. I enjoy your videos.

[FrankGraffagnino]

thanks for sharing tips like this! also, thanks for acknowledging something you struggled with. unfortunately, so many people just show stuff that works and not the struggle and it makes viewers feel like they just aren't good at this stuff when they struggle. But everyone struggles. Thanks!

[abdulazizmohammed]

Long time, good ur bk good ur ok nice and great channel 👍

[chrisg]

Bitbang ftw!! And Glad you're back..

[yunwu]

Great project! I love the overdrive/distortion on your voice recording 😆

[semiuadebayo]

Thanks for the codes; Simple and straight forward....no bla bla bla....

[nightwolf]

Man you're so great
Please if you can explain how to make advanced stirling engine because the old one you made was great but it didn't work too much.
Keep going we want to see your videos more 👏

[terencechan]

Subbed. This is awesome! Thanks for sharing super useful tips like this one!

[kovidhaswapnapriyak]

great lecture!! pls tell me whether Arduino Uno can send images to raspberry pi over serial communication ??

[swagswap]

Great perspective. Thanks!
Here's the python that I use for that same task:

from serial import *
import serial.tools.list_ports

ports =
i = 1
print("\n")
for elem in ports:
print(i, " - " + elem[0])
i = i + 1
selectedPort = input("Select COM port option: ")
comPort = ports[int(selectedPort) - 1][0]

serialPort = Serial(comPort, 57600, timeout=0, writeTimeout=0)

while 1:
if serialPort.in_waiting:
readLetter = serialPort.read()
print(readLetter)

[jaajpp]

Hello man thanks for ur videos
But i have a question
Can you explain how to make a spark transmitter?and how it works?
I searched for this everywhere and I didn't understand it too much.
I hope you make a video about this soon.
Thank you!

[AxelWerner]

Is your audio distorted, or is it just me?!?

[mac_uk]

Im thinking of building an ROV sub, it will have an Mega 2560 in the sub & a Rasbury pi top side. Data & commands will pass both ways, the PI will display camera video & data on a screen. Thinking of using fiber optics for the link between the two, have you anything on using mega & PI with fiber optics.